package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Scanner;

/**
 * 根据用户输入的用户名，删除该用户信息
 * 使用预编译SQL语句完成
 */
public class JDBCDemo12 {
    public static void main(String[] args) throws SQLException {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入用户名：");
        String username = sc.next();
        try(Connection conn = DBUtil.getConnection()) {
            String sql = "DELETE FROM userinfo WHERE username=?";
            PreparedStatement ps = conn.prepareStatement(sql);
            ps.setString(1, username);
            int count = ps.executeUpdate();
            System.out.println(count>0?"删除成功！":"删除失败！");
        }catch (SQLException e){
            e.printStackTrace();
        }
    }
}
